Alright, let's solve this math problem step by step. First, we have the number 40. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 259. So, we're going to take the number 40 and add it to itself 259 times.
Step 1: 0 + 40 = 40
Step 2: 40 + 40 = 80
Step 3: 80 + 40 = 120
Step 4: 120 + 40 = 160
Step 5: 160 + 40 = 200
Step 6: 200 + 40 = 240
Step 7: 240 + 40 = 280
Step 8: 280 + 40 = 320
Step 9: 320 + 40 = 360
Step 10: 360 + 40 = 400
Step 11: 400 + 40 = 440
Step 12: 440 + 40 = 480
Step 13: 480 + 40 = 520
Step 14: 520 + 40 = 560
Step 15: 560 + 40 = 600
Step 16: 600 + 40 = 640
Step 17: 640 + 40 = 680
Step 18: 680 + 40 = 720
Step 19: 720 + 40 = 760
Step 20: 760 + 40 = 800
Step 21: 800 + 40 = 840
Step 22: 840 + 40 = 880
Step 23: 880 + 40 = 920
Step 24: 920 + 40 = 960
Step 25: 960 + 40 = 1000
Step 26: 1000 + 40 = 1040
Step 27: 1040 + 40 = 1080
Step 28: 1080 + 40 = 1120
Step 29: 1120 + 40 = 1160
Step 30: 1160 + 40 = 1200
Step 31: 1200 + 40 = 1240
Step 32: 1240 + 40 = 1280
Step 33: 1280 + 40 = 1320
Step 34: 1320 + 40 = 1360
Step 35: 1360 + 40 = 1400
Step 36: 1400 + 40 = 1440
Step 37: 1440 + 40 = 1480
Step 38: 1480 + 40 = 1520
Step 39: 1520 + 40 = 1560
Step 40: 1560 + 40 = 1600
Step 41: 1600 + 40 = 1640
Step 42: 1640 + 40 = 1680
Step 43: 1680 + 40 = 1720
Step 44: 1720 + 40 = 1760
Step 45: 1760 + 40 = 1800
Step 46: 1800 + 40 = 1840
Step 47: 1840 + 40 = 1880
Step 48: 1880 + 40 = 1920
Step 49: 1920 + 40 = 1960
Step 50: 1960 + 40 = 2000
Step 51: 2000 + 40 = 2040
Step 52: 2040 + 40 = 2080
Step 53: 2080 + 40 = 2120
Step 54: 2120 + 40 = 2160
Step 55: 2160 + 40 = 2200
Step 56: 2200 + 40 = 2240
Step 57: 2240 + 40 = 2280
Step 58: 2280 + 40 = 2320
Step 59: 2320 + 40 = 2360
Step 60: 2360 + 40 = 2400
Step 61: 2400 + 40 = 2440
Step 62: 2440 + 40 = 2480
Step 63: 2480 + 40 = 2520
Step 64: 2520 + 40 = 2560
Step 65: 2560 + 40 = 2600
Step 66: 2600 + 40 = 2640
Step 67: 2640 + 40 = 2680
Step 68: 2680 + 40 = 2720
Step 69: 2720 + 40 = 2760
Step 70: 2760 + 40 = 2800
Step 71: 2800 + 40 = 2840
Step 72: 2840 + 40 = 2880
Step 73: 2880 + 40 = 2920
Step 74: 2920 + 40 = 2960
Step 75: 2960 + 40 = 3000
Step 76: 3000 + 40 = 3040
Step 77: 3040 + 40 = 3080
Step 78: 3080 + 40 = 3120
Step 79: 3120 + 40 = 3160
Step 80: 3160 + 40 = 3200
Step 81: 3200 + 40 = 3240
Step 82: 3240 + 40 = 3280
Step 83: 3280 + 40 = 3320
Step 84: 3320 + 40 = 3360
Step 85: 3360 + 40 = 3400
Step 86: 3400 + 40 = 3440
Step 87: 3440 + 40 = 3480
Step 88: 3480 + 40 = 3520
Step 89: 3520 + 40 = 3560
Step 90: 3560 + 40 = 3600
Step 91: 3600 + 40 = 3640
Step 92: 3640 + 40 = 3680
Step 93: 3680 + 40 = 3720
Step 94: 3720 + 40 = 3760
Step 95: 3760 + 40 = 3800
Step 96: 3800 + 40 = 3840
Step 97: 3840 + 40 = 3880
Step 98: 3880 + 40 = 3920
Step 99: 3920 + 40 = 3960
Step 100: 3960 + 40 = 4000
Step 101: 4000 + 40 = 4040
Step 102: 4040 + 40 = 4080
Step 103: 4080 + 40 = 4120
Step 104: 4120 + 40 = 4160
Step 105: 4160 + 40 = 4200
Step 106: 4200 + 40 = 4240
Step 107: 4240 + 40 = 4280
Step 108: 4280 + 40 = 4320
Step 109: 4320 + 40 = 4360
Step 110: 4360 + 40 = 4400
Step 111: 4400 + 40 = 4440
Step 112: 4440 + 40 = 4480
Step 113: 4480 + 40 = 4520
Step 114: 4520 + 40 = 4560
Step 115: 4560 + 40 = 4600
Step 116: 4600 + 40 = 4640
Step 117: 4640 + 40 = 4680
Step 118: 4680 + 40 = 4720
Step 119: 4720 + 40 = 4760
Step 120: 4760 + 40 = 4800
Step 121: 4800 + 40 = 4840
Step 122: 4840 + 40 = 4880
Step 123: 4880 + 40 = 4920
Step 124: 4920 + 40 = 4960
Step 125: 4960 + 40 = 5000
Step 126: 5000 + 40 = 5040
Step 127: 5040 + 40 = 5080
Step 128: 5080 + 40 = 5120
Step 129: 5120 + 40 = 5160
Step 130: 5160 + 40 = 5200
Step 131: 5200 + 40 = 5240
Step 132: 5240 + 40 = 5280
Step 133: 5280 + 40 = 5320
Step 134: 5320 + 40 = 5360
Step 135: 5360 + 40 = 5400
Step 136: 5400 + 40 = 5440
Step 137: 5440 + 40 = 5480
Step 138: 5480 + 40 = 5520
Step 139: 5520 + 40 = 5560
Step 140: 5560 + 40 = 5600
Step 141: 5600 + 40 = 5640
Step 142: 5640 + 40 = 5680
Step 143: 5680 + 40 = 5720
Step 144: 5720 + 40 = 5760
Step 145: 5760 + 40 = 5800
Step 146: 5800 + 40 = 5840
Step 147: 5840 + 40 = 5880
Step 148: 5880 + 40 = 5920
Step 149: 5920 + 40 = 5960
Step 150: 5960 + 40 = 6000
Step 151: 6000 + 40 = 6040
Step 152: 6040 + 40 = 6080
Step 153: 6080 + 40 = 6120
Step 154: 6120 + 40 = 6160
Step 155: 6160 + 40 = 6200
Step 156: 6200 + 40 = 6240
Step 157: 6240 + 40 = 6280
Step 158: 6280 + 40 = 6320
Step 159: 6320 + 40 = 6360
Step 160: 6360 + 40 = 6400
Step 161: 6400 + 40 = 6440
Step 162: 6440 + 40 = 6480
Step 163: 6480 + 40 = 6520
Step 164: 6520 + 40 = 6560
Step 165: 6560 + 40 = 6600
Step 166: 6600 + 40 = 6640
Step 167: 6640 + 40 = 6680
Step 168: 6680 + 40 = 6720
Step 169: 6720 + 40 = 6760
Step 170: 6760 + 40 = 6800
Step 171: 6800 + 40 = 6840
Step 172: 6840 + 40 = 6880
Step 173: 6880 + 40 = 6920
Step 174: 6920 + 40 = 6960
Step 175: 6960 + 40 = 7000
Step 176: 7000 + 40 = 7040
Step 177: 7040 + 40 = 7080
Step 178: 7080 + 40 = 7120
Step 179: 7120 + 40 = 7160
Step 180: 7160 + 40 = 7200
Step 181: 7200 + 40 = 7240
Step 182: 7240 + 40 = 7280
Step 183: 7280 + 40 = 7320
Step 184: 7320 + 40 = 7360
Step 185: 7360 + 40 = 7400
Step 186: 7400 + 40 = 7440
Step 187: 7440 + 40 = 7480
Step 188: 7480 + 40 = 7520
Step 189: 7520 + 40 = 7560
Step 190: 7560 + 40 = 7600
Step 191: 7600 + 40 = 7640
Step 192: 7640 + 40 = 7680
Step 193: 7680 + 40 = 7720
Step 194: 7720 + 40 = 7760
Step 195: 7760 + 40 = 7800
Step 196: 7800 + 40 = 7840
Step 197: 7840 + 40 = 7880
Step 198: 7880 + 40 = 7920
Step 199: 7920 + 40 = 7960
Step 200: 7960 + 40 = 8000
Step 201: 8000 + 40 = 8040
Step 202: 8040 + 40 = 8080
Step 203: 8080 + 40 = 8120
Step 204: 8120 + 40 = 8160
Step 205: 8160 + 40 = 8200
Step 206: 8200 + 40 = 8240
Step 207: 8240 + 40 = 8280
Step 208: 8280 + 40 = 8320
Step 209: 8320 + 40 = 8360
Step 210: 8360 + 40 = 8400
Step 211: 8400 + 40 = 8440
Step 212: 8440 + 40 = 8480
Step 213: 8480 + 40 = 8520
Step 214: 8520 + 40 = 8560
Step 215: 8560 + 40 = 8600
Step 216: 8600 + 40 = 8640
Step 217: 8640 + 40 = 8680
Step 218: 8680 + 40 = 8720
Step 219: 8720 + 40 = 8760
Step 220: 8760 + 40 = 8800
Step 221: 8800 + 40 = 8840
Step 222: 8840 + 40 = 8880
Step 223: 8880 + 40 = 8920
Step 224: 8920 + 40 = 8960
Step 225: 8960 + 40 = 9000
Step 226: 9000 + 40 = 9040
Step 227: 9040 + 40 = 9080
Step 228: 9080 + 40 = 9120
Step 229: 9120 + 40 = 9160
Step 230: 9160 + 40 = 9200
Step 231: 9200 + 40 = 9240
Step 232: 9240 + 40 = 9280
Step 233: 9280 + 40 = 9320
Step 234: 9320 + 40 = 9360
Step 235: 9360 + 40 = 9400
Step 236: 9400 + 40 = 9440
Step 237: 9440 + 40 = 9480
Step 238: 9480 + 40 = 9520
Step 239: 9520 + 40 = 9560
Step 240: 9560 + 40 = 9600
Step 241: 9600 + 40 = 9640
Step 242: 9640 + 40 = 9680
Step 243: 9680 + 40 = 9720
Step 244: 9720 + 40 = 9760
Step 245: 9760 + 40 = 9800
Step 246: 9800 + 40 = 9840
Step 247: 9840 + 40 = 9880
Step 248: 9880 + 40 = 9920
Step 249: 9920 + 40 = 9960
Step 250: 9960 + 40 = 10000
Step 251: 10000 + 40 = 10040
Step 252: 10040 + 40 = 10080
Step 253: 10080 + 40 = 10120
Step 254: 10120 + 40 = 10160
Step 255: 10160 + 40 = 10200
Step 256: 10200 + 40 = 10240
Step 257: 10240 + 40 = 10280
Step 258: 10280 + 40 = 10320
Step 259: 10320 + 40 = 10360

So, 40*259 = 10360